If you own a Sig Sauer P220 .45 ACP, factory magazines are the foundation of reliable feeding and performance. The Sig Sauer P220 .45 ACP 10-round magazine gives you two extra rounds compared to standard capacity, meaning more time between reloads whether you're at the range or carrying professionally. This is a genuine Sig factory original—not an aftermarket substitute—engineered to the same Swiss/German precision standards that define the P220 platform.

The 10-round capacity comes in a stainless steel body with a natural silver finish, backed by witness holes numbered 2 through 10 so you can verify your round count at a glance. The follower and extended base pad are molded polymer in black. The extended base pad protrudes below the grip when the magazine is seated, giving your pinky finger a purchase point on the gun and making the mag easier to grab during a reload. That design is distinctly Sig—practical and refined.

Whether you're building redundancy into your carry setup, stocking spares for the range, or simply want the extra capacity, a factory Sig magazine is a smart investment. Aftermarket alternatives flood the market, but Sig's own magazines carry the engineering confidence you expect from the company that built the gun itself. For a P220 owner, this is the right choice.

Key Features

• Factory Sig Sauer original—engineered for P220 .45 ACP reliability
• 10-round capacity (2 more rounds than standard)
• Stainless steel body with natural silver finish
• Numbered witness holes (2–10) for quick round-count verification
• Extended base pad for improved grip purchase and reload handling
• Black polymer follower and base pad

Specifications

Frequently Asked Questions

Is this magazine compatible with my Sig Sauer P220 .45 ACP?

Yes. This is a factory Sig Sauer magazine engineered specifically for the P220 .45 ACP. It will fit and function in your P220's magwell.

How much capacity does this add compared to the original magazine?

This 10-round magazine holds two additional rounds compared to the standard P220 magazine.

What's the extended base pad for?

The extended base pad protrudes below the grip when seated, providing a platform for your pinky finger during shooting and making the magazine easier to grab during reloads.

Can I see how many rounds are in the magazine?

Yes. The magazine features witness holes on the side numbered 2 through 10, allowing you to verify your round count without removing the magazine from the gun.